Variant 1
ECU- Catalog engine
- 2000 136HP
- Controller brand
- SIEMENS
- ECU
- SID803
- Stock power
- 136 HP
- ECU SW
- PO0AA0
- ECU HW
- 5WS4 0281A-T
CITROEN · SID803 ECU · diesel
CITROEN C4 SID803 tuning files
Everything we work with on the CITROEN C4 fitted with the SID803. Stock output across the matched variants spans 134–136 HP. On this diesel, expect the complete diesel toolset — from Stage work to the common delete requests. Each file is tied to the precise software on your car and checked before it goes out.
Available solutions
Solutions that apply to the SID803 on this diesel platform. The exact set depends on the specific engine and software version.
Stage 1Stage 2DPF OffEGR OffAdBlue OffSwirl Flaps OffLambda / O2MAF OffTVANOx OffAGSReadinessStart/Stop OffOil PressureLimp Mode Off
Engine variants & ECU software
7 distinct variants for the CITROEN C4 on the SID803 ECU. Reference the engine and controller software when you upload.
Variant 2
ECU- Catalog engine
- 2000 136HP
- Controller brand
- SIEMENS
- ECU
- SID803
- Stock power
- 136 HP
- ECU SW
- PO0AA0
Variant 3
ECU- Catalog engine
- 2000 136HP
- Controller brand
- SIEMENS
- ECU
- SID803
- Stock power
- 136 HP
Variant 4
ECU- Catalog engine
- 2000 136HP
- Controller brand
- SIEMENS
- ECU
- SID803
- Stock power
- 136 HP
- ECU HW
- 5WS4 0281A-T
Variant 5
ECU- Catalog engine
- 2000 136HP
- Controller brand
- SIEMENS
- ECU
- SID803
- Stock power
- 136 HP
- ECU SW
- PO0A80
Variant 6
ECU- Catalog engine
- 2000 HDI 136HP
- Controller brand
- SIEMENS
- ECU
- SID803
- Stock power
- 136 HP
Variant 7
ECU- Catalog engine
- 2000 134HP
- Controller brand
- SIEMENS
- ECU
- SID803
- Stock power
- 134 HP
- ECU HW
- 5WS4 0281A-T
Related vehicles
Other vehicles built on the SID803 controller or the same engine — handy when a platform spans several models and makes.
Questions, answered.
Which tuning solutions are available for the CITROEN C4 on the SID803?
Stage 1, Stage 2, DPF Off, EGR Off, AdBlue Off, Swirl Flaps Off, Lambda / O2, MAF Off, TVA, NOx Off, AGS, Readiness, Start/Stop Off, Oil Pressure, Limp Mode Off. The exact set depends on the specific engine and software version.
Do you cover the SID803 ECU software on this model?
Yes — the CITROEN C4 on the SID803 ECU is part of the catalog. Upload your original file and it is matched to the right calibration before any work is done.
How is the file delivered?
Through the TuningBay workflow with operator validation and one safe, sensible result per job. Files we deliver, we stand behind.